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1fc22eb4 JD |
1 | /* |
2 | * Copyright (C) 2011 Julien Desfossez | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
1dec520a | 19 | #include <babeltrace/ctf/events.h> |
1fc22eb4 JD |
20 | #include <stdlib.h> |
21 | #include <string.h> | |
22 | #include "common.h" | |
23 | ||
d67167cd JD |
24 | uint64_t get_cpu_id(struct bt_ctf_event *event) |
25 | { | |
26 | struct definition *scope; | |
27 | uint64_t cpu_id; | |
28 | ||
29 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT); | |
30 | cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(event, scope, "cpu_id")); | |
31 | if (bt_ctf_field_get_error()) { | |
32 | fprintf(stderr, "[error] get cpu_id\n"); | |
33 | return -1ULL; | |
34 | } | |
35 | ||
36 | return cpu_id; | |
37 | } | |
38 | ||
1dec520a JD |
39 | uint64_t get_context_tid(struct bt_ctf_event *event) |
40 | { | |
41 | struct definition *scope; | |
42 | uint64_t tid; | |
43 | ||
44 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
45 | tid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
46 | scope, "_tid")); | |
47 | if (bt_ctf_field_get_error()) { | |
48 | fprintf(stderr, "Missing tid context info\n"); | |
49 | return -1ULL; | |
50 | } | |
51 | ||
52 | return tid; | |
53 | } | |
54 | ||
55 | uint64_t get_context_pid(struct bt_ctf_event *event) | |
56 | { | |
57 | struct definition *scope; | |
58 | uint64_t pid; | |
59 | ||
60 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
61 | pid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
62 | scope, "_pid")); | |
63 | if (bt_ctf_field_get_error()) { | |
64 | fprintf(stderr, "Missing pid context info\n"); | |
65 | return -1ULL; | |
66 | } | |
67 | ||
68 | return pid; | |
69 | } | |
70 | ||
71 | uint64_t get_context_ppid(struct bt_ctf_event *event) | |
72 | { | |
73 | struct definition *scope; | |
74 | uint64_t ppid; | |
75 | ||
76 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
77 | ppid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
78 | scope, "_ppid")); | |
79 | if (bt_ctf_field_get_error()) { | |
80 | fprintf(stderr, "Missing ppid context info\n"); | |
81 | return -1ULL; | |
82 | } | |
83 | ||
84 | return ppid; | |
85 | } | |
86 | ||
87 | char *get_context_comm(struct bt_ctf_event *event) | |
88 | { | |
89 | struct definition *scope; | |
90 | char *comm; | |
91 | ||
92 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
93 | comm = bt_ctf_get_char_array(bt_ctf_get_field(event, | |
94 | scope, "_procname")); | |
95 | if (bt_ctf_field_get_error()) { | |
96 | fprintf(stderr, "Missing comm context info\n"); | |
97 | return NULL; | |
98 | } | |
99 | ||
100 | return comm; | |
101 | } | |
102 | ||
1fc22eb4 JD |
103 | struct processtop *find_process_tid(struct lttngtop *ctx, int tid, char *comm) |
104 | { | |
105 | gint i; | |
106 | struct processtop *tmp; | |
107 | ||
108 | for (i = 0; i < ctx->process_table->len; i++) { | |
109 | tmp = g_ptr_array_index(ctx->process_table, i); | |
110 | if (tmp && tmp->tid == tid) | |
111 | return tmp; | |
112 | } | |
113 | return NULL; | |
114 | } | |
115 | ||
116 | struct processtop* add_proc(struct lttngtop *ctx, int tid, char *comm, | |
117 | unsigned long timestamp) | |
118 | { | |
119 | struct processtop *newproc; | |
120 | ||
121 | /* if the PID already exists, we just rename the process */ | |
122 | /* FIXME : need to integrate with clone/fork/exit to be accurate */ | |
123 | newproc = find_process_tid(ctx, tid, comm); | |
124 | if (!newproc) { | |
559c9f86 | 125 | newproc = g_new0(struct processtop, 1); |
1fc22eb4 JD |
126 | newproc->tid = tid; |
127 | newproc->birth = timestamp; | |
128 | newproc->process_files_table = g_ptr_array_new(); | |
b093de8a MB |
129 | newproc->files_history = g_new0(struct file_history, 1); |
130 | newproc->files_history->next = NULL; | |
131 | newproc->totalfileread = 0; | |
132 | newproc->totalfilewrite = 0; | |
133 | newproc->fileread = 0; | |
134 | newproc->filewrite = 0; | |
135 | newproc->syscall_info = NULL; | |
1fc22eb4 | 136 | newproc->threads = g_ptr_array_new(); |
85db4618 | 137 | newproc->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
138 | g_ptr_array_add(ctx->process_table, newproc); |
139 | } | |
140 | newproc->comm = strdup(comm); | |
141 | ||
142 | return newproc; | |
143 | } | |
144 | ||
145 | struct processtop* update_proc(struct processtop* proc, int pid, int tid, | |
146 | int ppid, char *comm) | |
147 | { | |
148 | if (proc) { | |
149 | proc->pid = pid; | |
150 | proc->tid = tid; | |
151 | proc->ppid = ppid; | |
152 | if (strcmp(proc->comm, comm) != 0) { | |
153 | free(proc->comm); | |
154 | proc->comm = strdup(comm); | |
155 | } | |
156 | } | |
157 | return proc; | |
158 | } | |
159 | ||
160 | /* | |
161 | * This function just sets the time of death of a process. | |
162 | * When we rotate the cputime we remove it from the process list. | |
163 | */ | |
164 | void death_proc(struct lttngtop *ctx, int tid, char *comm, | |
165 | unsigned long timestamp) | |
166 | { | |
167 | struct processtop *tmp; | |
168 | tmp = find_process_tid(ctx, tid, comm); | |
169 | if (tmp && strcmp(tmp->comm, comm) == 0) | |
170 | tmp->death = timestamp; | |
171 | } | |
172 | ||
173 | struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm, | |
174 | unsigned long timestamp) | |
175 | { | |
176 | struct processtop *tmp; | |
177 | tmp = find_process_tid(ctx, tid, comm); | |
178 | if (tmp && strcmp(tmp->comm, comm) == 0) | |
179 | return tmp; | |
180 | return add_proc(ctx, tid, comm, timestamp); | |
181 | } | |
182 | ||
183 | void add_thread(struct processtop *parent, struct processtop *thread) | |
184 | { | |
185 | gint i; | |
186 | struct processtop *tmp; | |
187 | ||
188 | for (i = 0; i < parent->threads->len; i++) { | |
189 | tmp = g_ptr_array_index(parent->threads, i); | |
190 | if (tmp == thread) | |
191 | return; | |
192 | } | |
193 | g_ptr_array_add(parent->threads, thread); | |
194 | } | |
195 | ||
196 | struct cputime* add_cpu(int cpu) | |
197 | { | |
198 | struct cputime *newcpu; | |
199 | ||
559c9f86 | 200 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 JD |
201 | newcpu->id = cpu; |
202 | newcpu->current_task = NULL; | |
85db4618 | 203 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
204 | |
205 | g_ptr_array_add(lttngtop.cpu_table, newcpu); | |
206 | ||
207 | return newcpu; | |
208 | } | |
209 | struct cputime* get_cpu(int cpu) | |
210 | { | |
211 | gint i; | |
212 | struct cputime *tmp; | |
213 | ||
214 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
215 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
216 | if (tmp->id == cpu) | |
217 | return tmp; | |
218 | } | |
219 | ||
220 | return add_cpu(cpu); | |
221 | } | |
222 | ||
223 | /* | |
224 | * At the end of a sampling period, we need to display the cpu time for each | |
225 | * process and to reset it to zero for the next period | |
226 | */ | |
227 | void rotate_cputime(unsigned long end) | |
228 | { | |
229 | gint i; | |
230 | struct cputime *tmp; | |
231 | unsigned long elapsed; | |
232 | ||
233 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
234 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
235 | elapsed = end - tmp->task_start; | |
236 | if (tmp->current_task) { | |
237 | tmp->current_task->totalcpunsec += elapsed; | |
238 | tmp->current_task->threadstotalcpunsec += elapsed; | |
239 | if (tmp->current_task->pid != tmp->current_task->tid && | |
240 | tmp->current_task->threadparent) { | |
241 | tmp->current_task->threadparent->threadstotalcpunsec += elapsed; | |
242 | } | |
243 | } | |
244 | tmp->task_start = end; | |
245 | } | |
246 | } | |
247 | ||
248 | void reset_perf_counter(gpointer key, gpointer value, gpointer user_data) | |
249 | { | |
250 | ((struct perfcounter*) value)->count = 0; | |
251 | } | |
252 | ||
253 | void copy_perf_counter(gpointer key, gpointer value, gpointer new_table) | |
254 | { | |
255 | struct perfcounter *newperf; | |
256 | ||
559c9f86 | 257 | newperf = g_new0(struct perfcounter, 1); |
1fc22eb4 JD |
258 | newperf->count = ((struct perfcounter *) value)->count; |
259 | newperf->visible = ((struct perfcounter *) value)->visible; | |
260 | newperf->sort = ((struct perfcounter *) value)->sort; | |
85db4618 | 261 | g_hash_table_insert((GHashTable *) new_table, strdup(key), newperf); |
1fc22eb4 JD |
262 | } |
263 | ||
264 | void rotate_perfcounter() { | |
265 | int i; | |
266 | struct processtop *tmp; | |
267 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
268 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
269 | g_hash_table_foreach(tmp->perf, reset_perf_counter, NULL); | |
270 | } | |
271 | } | |
272 | ||
273 | void cleanup_processtop() | |
274 | { | |
b093de8a | 275 | gint i, j; |
1fc22eb4 | 276 | struct processtop *tmp; |
b093de8a | 277 | struct files *tmpf; /* a temporary file */ |
1fc22eb4 JD |
278 | |
279 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
280 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
281 | tmp->totalcpunsec = 0; | |
282 | tmp->threadstotalcpunsec = 0; | |
b093de8a MB |
283 | tmp->fileread = 0; |
284 | tmp->filewrite = 0; | |
285 | ||
286 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
287 | tmpf = g_ptr_array_index(tmp->process_files_table, j); | |
288 | if (tmpf != NULL) { | |
289 | tmpf->read = 0; | |
290 | tmpf->write = 0; | |
291 | } | |
292 | } | |
1fc22eb4 JD |
293 | } |
294 | } | |
295 | ||
296 | struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end) | |
297 | { | |
298 | gint i, j; | |
299 | unsigned long time; | |
300 | struct lttngtop *dst; | |
301 | struct processtop *tmp, *tmp2, *new; | |
302 | struct cputime *tmpcpu, *newcpu; | |
303 | struct files *tmpfile, *newfile; | |
304 | ||
559c9f86 | 305 | dst = g_new0(struct lttngtop, 1); |
1fc22eb4 JD |
306 | dst->start = start; |
307 | dst->end = end; | |
308 | dst->process_table = g_ptr_array_new(); | |
309 | dst->files_table = g_ptr_array_new(); | |
310 | dst->cpu_table = g_ptr_array_new(); | |
85db4618 | 311 | dst->perf_list = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
312 | |
313 | rotate_cputime(end); | |
314 | ||
315 | g_hash_table_foreach(lttngtop.perf_list, copy_perf_counter, dst->perf_list); | |
316 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
317 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
559c9f86 | 318 | new = g_new0(struct processtop, 1); |
1fc22eb4 JD |
319 | |
320 | memcpy(new, tmp, sizeof(struct processtop)); | |
321 | new->threads = g_ptr_array_new(); | |
322 | new->comm = strdup(tmp->comm); | |
323 | new->process_files_table = g_ptr_array_new(); | |
85db4618 | 324 | new->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
325 | g_hash_table_foreach(tmp->perf, copy_perf_counter, new->perf); |
326 | ||
1fc22eb4 | 327 | /* compute the stream speed */ |
85db4618 JD |
328 | if (end - start != 0) { |
329 | time = (end - start) / NSEC_PER_SEC; | |
b093de8a MB |
330 | new->fileread = new->fileread/(time); |
331 | new->filewrite = new->filewrite/(time); | |
1fc22eb4 JD |
332 | } |
333 | ||
334 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
335 | tmpfile = g_ptr_array_index(tmp->process_files_table, j); | |
1fc22eb4 | 336 | |
b093de8a MB |
337 | newfile = malloc(sizeof(struct files)); |
338 | ||
339 | if (tmpfile != NULL) { | |
340 | memcpy(newfile, tmpfile, sizeof(struct files)); | |
341 | newfile->name = strdup(tmpfile->name); | |
342 | newfile->ref = new; | |
343 | g_ptr_array_add(new->process_files_table, | |
344 | newfile); | |
345 | g_ptr_array_add(dst->files_table, newfile); | |
346 | } else { | |
347 | g_ptr_array_add(new->process_files_table, NULL); | |
348 | g_ptr_array_add(dst->files_table, NULL); | |
349 | } | |
1fc22eb4 JD |
350 | /* |
351 | * if the process died during the last period, we remove all | |
352 | * files associated with if after the copy | |
353 | */ | |
354 | if (tmp->death > 0 && tmp->death < end) { | |
355 | g_ptr_array_remove(tmp->process_files_table, tmpfile); | |
559c9f86 | 356 | g_free(tmpfile); |
1fc22eb4 JD |
357 | } |
358 | } | |
359 | g_ptr_array_add(dst->process_table, new); | |
360 | ||
361 | /* | |
362 | * if the process died during the last period, we remove it from | |
363 | * the current process list after the copy | |
364 | */ | |
365 | if (tmp->death > 0 && tmp->death < end) { | |
366 | g_ptr_array_remove(lttngtop.process_table, tmp); | |
85db4618 | 367 | /* FIXME : TRUE does not mean clears the object in it */ |
1fc22eb4 JD |
368 | g_ptr_array_free(tmp->threads, TRUE); |
369 | free(tmp->comm); | |
370 | g_ptr_array_free(tmp->process_files_table, TRUE); | |
85db4618 | 371 | /* FIXME : clear elements */ |
1fc22eb4 | 372 | g_hash_table_destroy(tmp->perf); |
559c9f86 | 373 | g_free(tmp); |
1fc22eb4 JD |
374 | } |
375 | } | |
376 | rotate_perfcounter(); | |
377 | ||
378 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
379 | tmpcpu = g_ptr_array_index(lttngtop.cpu_table, i); | |
559c9f86 | 380 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 | 381 | memcpy(newcpu, tmpcpu, sizeof(struct cputime)); |
85db4618 | 382 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
383 | g_hash_table_foreach(tmpcpu->perf, copy_perf_counter, newcpu->perf); |
384 | /* | |
385 | * note : we don't care about the current process pointer in the copy | |
386 | * so the reference is invalid after the memcpy | |
387 | */ | |
388 | g_ptr_array_add(dst->cpu_table, newcpu); | |
389 | } | |
85db4618 | 390 | /* FIXME : better algo */ |
1fc22eb4 JD |
391 | /* create the threads index if required */ |
392 | for (i = 0; i < dst->process_table->len; i++) { | |
393 | tmp = g_ptr_array_index(dst->process_table, i); | |
394 | if (tmp->pid == tmp->tid) { | |
395 | for (j = 0; j < dst->process_table->len; j++) { | |
396 | tmp2 = g_ptr_array_index(dst->process_table, j); | |
397 | if (tmp2->pid == tmp->pid) { | |
398 | tmp2->threadparent = tmp; | |
399 | g_ptr_array_add(tmp->threads, tmp2); | |
400 | } | |
401 | } | |
402 | } | |
403 | } | |
404 | ||
405 | // update_global_stats(dst); | |
406 | cleanup_processtop(); | |
407 | ||
408 | return dst; | |
409 | } | |
410 |